There is plenty of compelling evidence that Amazon is looking very closely at the Washington, DC, area for its second headquarters project, called HQ2.

Hints the company has dropped — both on purpose and inadvertently — are starting to add up.

There are other reasons the company may want to place its headquarters in Washington.

The race for Amazon's second headquarters is heating up, and Washington, DC, just might be in the lead.

The evidence is now piling up that Amazon is looking seriously at the nation's capital for its HQ2 project. After all, it may be the only place large enough to capture the company's growing ambitions across multiple sectors with its high-profile colleges, sprawling transportation system, and high concentration of powerful people.

Here are all of the reasons it's looking likely that Washington will be chosen for Amazon's HQ2:

If you have any information about Amazon's HQ2 project, contact this reporter at dgreen@businessinsider.com.