Explanation:

- Tropolone: This compound is not a heterocyclic aromatic compound. It lacks a heteroatom in its ring, which is necessary for a compound to be classified as heterocyclic.

- Furan: It is an aromatic compound with a five-membered ring that includes an oxygen atom, qualifying it as heterocyclic.

- Thiophene: This compound has a similar structure to benzene but contains a sulfur atom in its ring, making it a heterocyclic aromatic compound.

- Pyridine: It is a six-membered aromatic ring with a nitrogen atom, making it a heterocyclic aromatic compound.