halle aux bles - Paris plan (the grain market)

halle aux bles - 1785 - this version burned in 1802

halle aux bles - 1807 - the Belanger version

halle aux bles (Belanger version) being demolished in 1887

Passage du Caire, a "ferrovitreous" covered commerical arcade in Paris (1798)

Passage du Caire, Paris (1798)

Passage du Caire, Paris (1798)

Passage St. Vivienne, Paris (1823)

Passage St. Vivienne, Paris (1823)

Gallerie St. Hubert (1836)

Gallerie Vittorio Emmanuelle, Milan (1863)

Gallerie Vittorio Emmanuelle, Milan (1863)

The Department Store - Au Bon Marche, Paris (1867)

The Department Store - Au Bon Marche, Paris (1867)

The Department Store - Au Bon Marche, Paris (1867)

The Department Store - Au Bon Marche, Paris (1867)

Syon House Conservatory (1827)

Syon House Conservatory, west of London (1827)

Syon House Conservatory, west of London (1827)

Palm House, Bretton Hall (1827)

Palm House, Kew Gardens, west of London (1844)

Palm House, Kew Gardens, west of London (1844)

Great Conservatory, Chatsworth (1836)

Great Conservatory, Chatsworth (1836)

Great Conservatory, Chatsworth (1836)

Lily House, Chatsworth (1849)

Lily House, Chatsworth (1849)

Crystal Palace by Joseph Paxton (1851)

Crystal Palace by Joseph Paxton (1851)

Crystal Palace by Joseph Paxton (1851)

Crystal Palace by Joseph Paxton (1851)

Crystal Palace by Joseph Paxton (1851)

Crystal Palace by Joseph Paxton (1851)

Crown Street Station, Liverpool (1831)

Crown Street Station, Liverpool (1831)

Lime Street Station, Liverpool (1836)

Liverpool & Manchester Line roadbed cut

Euston Station, London (1837)

Euston Station, London (1837)

Euston Station, London (1837)

Euston Station, London (1837)

King's Cross Station, London (1851)

King's Cross Station, London (1851)

King's Cross Station, London (1851)

King's Cross Station, London (1851)

Gare du Nord, Paris (1864)

Gare du Nord, Paris (1864)

St. Pancras Station, London (1868)

St. Pancras Station, London (1868)

Saltash Bridge, Plymouth (1859)

Saltash Bridge, Plymoouth (1859)

Saltash Bridge, Plymouth (1859)

Saltash Bridge, Plymouth (1859)

Maria Pia Viaduct, Portugal (1877)

Maria Pia Viaduct, Portugal (1877)

Eiffel Tower, Paris (1889)

Eiffel Tower, Paris (1889)

Eiffel Tower, Paris (1889)

Forth Bridge, near Edinburgh (1883)

Forth Bridge, near Edinburgh (1883)

Forth Bridge, near Edinburgh (1883)

Forth Bridge, near Edinburgh (1883)

Forth Bridge, drawings (1883)

Forth Bridge, demonstration of cantilever by the design engineers

Brooklyn Bridge, NYC (1869-1883)

Brooklyn Bridge, NYC (1869-1883)

Brooklyn Bridge, NYC (1869-1883)

Jefferson about 1785 by Mather Brown

Maria Cosway about 1785

Jefferson's "Head & Heart Letter" (1786)

RC's visualization of the halle aux bles

Jefferson's anonymous submission to the competition for the Capitol

RC's visualization of the Capitol based on Latrobe/Jefferson

Historical precedents for the Washington metro system

Winning design for a 2001 competition for the Washington metro/a>