Charles Babbage's proto-computer, painstakingly brought to life.

Eighty million natural history specimens call this gargantuan museum home.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Hear the quietest sound from across the dome.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Stone shrouds of Prince Liu Sheng and Princess Dou Wan of the Han Dynasty, created to preserve their flesh for eternity.

An out-of-place slice of France, smack in the middle of Shanghai.

This ancient Chinese observatory still contains early astronomy technology.

Why walk on this historical site when you can zoom down instead?

A natural arch offers panoramic views of Yangshuo's karst hills.

The most famous location in China was home to whole dynasties worth of imperial rulers.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Single runway interrupted by a busy road that cuts across its middle.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Home to items never before seen by the public.