Peek through a transparent pyramid and drink in the mountain made of books.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

A strangely curved lamppost stands tall over this avenue in Rotterdam.

A five-story homage to tea times past.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

An architectural oddity hides in plain sight on this iconic London bridge.

Where condemned pirates met their grisly end at the gallows on the River Thames.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.

Putting the "mod" in "modular" since 2000.

A sculpture of a famous ape who was once a beloved household name in London.

Taxidermied animals galore, by appointment only.

This striking statue brings a scene from the African savannah into central London.

A clock designed to run with perfect accuracy for 10,000 years.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.

The bones of two medieval royal lions were discovered at the historic fortress.

The plunge pool is a surviving relic of a rowdy royal residence.

A giant scrawl on the skyline of south London.

A relic of Victorian grandeur hides beneath a busy South London road.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

Regency-era excess on the English Coast.

Half-drowned wooden stumps and stone blocks are all that remain of a Victorian landing that was destroyed by storms.

The Last Home of an Executed King.